Automatic flushing system for toilet and electronic bidet having the same

Abstract

An automatic flushing system for toilet and an electronic bidet toilet having the same are disclosed. The automatic flushing system for toilet has as overflow passage connecting an overflow port of a tank or a vacuum breaker to a toilet bowl. The overflow passage includes a first overflow line having a first end fixedly connected to a tank overflow port and a second end fixedly connected to a rim outlet of the toilet bowl, and a second overflow line having a first end fixedly connected to a vacuum breaker overflow port and a second end fixedly connected to a jet outlet of the toilet bowl. According to the present utility model, the overflow problem of the water and vacuum breaker is solved and generation of bubbles in the vacuum breaker during overflowing is eliminated.

1 . An automatic flushing system for toilet comprising a tank, a vacuum breaker, and at least one overflow passage connecting an overflow port of the tank or of the vacuum breaker to a toilet bowl. 
     
     
         2 . The automatic flushing system for toilet according to  claim 1 , wherein the at least one overflow passage includes a first overflow line having a first end fixedly connected to a tank overflow port and a second end fixedly connected to a rim outlet of the toilet bowl, and a second overflow line having a first end fixedly connected to a vacuum breaker overflow port and a second end fixedly connected to a jet outlet of the toilet bowl. 
     
     
         3 . The automatic flushing system for toilet according to  claim 1 , wherein the at least one overflow passage includes a first overflow line having a first end fixedly connected to a tank overflow port and a second end fixedly connected to a jet outlet of the toilet bowl, and a second overflow line having a first end fixedly connected to a vacuum breaker overflow port and a second end fixedly connected to a rim outlet of the toilet bowl. 
     
     
         4 . The automatic flushing system for toilet according to  claim 2 , wherein the first overflow line includes a first check valve which is normally open in a direction from the first end to the second end of the first overflow line and blocks flow in an opposite direction, and the second overflow line includes a second check valve which is normally open in a direction from the first end to the second end of the second overflow line and blocks flow in an opposite direction. 
     
     
         5 . The automatic flushing system for toilet according to  claim 4 , wherein the first check valve is vertically mounted with an end thereof which opens to the tank overflow port being located upward, and the second check valve is vertically mounted with an end thereof which opens to the vacuum breaker overflow port being located upward. 
     
     
         6 . The automatic flushing system for toilet according to  claim 5 , wherein the first and second check valves each include a valve seat and a floating ball below the valve seat. 
     
     
         7 . An electronic bidet toilet comprising the automatic flushing system for toilet according to  claim 1 .